Title :
Iron core length of hybrid-magnetic-circuit multi-couple motor
Author :
Ping, Zheng ; Weili, Li ; Shukang, Cheng
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., China
Abstract :
A fatal weakness of a hybrid stepping motor is the uneven distribution of air-gap magnetic field produced by the permanent magnet, which limits the choice of iron core length and volume to performance ratio of a motor. The paper puts forward a hybrid-magnetic-circuit multi-couple motor in which an axial field coil is added on the hybrid stepping motor to compensate for the uneven airgap magnetic field. A model motor is made and analyzed with 2D FEM. The iron core length of an actual motor is discussed
Keywords :
air gaps; compensation; finite element analysis; magnetic circuits; magnetic cores; magnetic fields; stepping motors; 2D FEM; axial field coil; hybrid stepping motor; hybrid-magnetic-circuit multi-couple motor; iron core length; permanent magnet; uneven air-gap magnetic field compensation; uneven air-gap magnetic field distribution; Air gaps; Coils; Iron; Magnetic analysis; Magnetic cores; Magnetic fields; Magnetic flux; Permanent magnet motors; Rotors; Stator cores;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.971837
